| Saathoff, Matthew | CITGO Petroleum Corporation |
| Sabadosa, Glenn | Bayer MaterialScience, LLC |
| Sabo, Ed | Trinity Bay Pipe & Supply, LLC |
| Sabrsula, Steve | Puffer-Sweiven, LP |
| Saenz, Elida | BASF Corporation - Freeport Facility |
| Saenz, Hector | CITGO Petroleum Corporation |
| SaFreitas, Lelio | ABS Consulting |
| Sago, Brett | Eastman Chemical Company |
| Sahba, Arsin | TRC Environmental Corp. |
| Saitoh, Yasuhiko | Shintech Corporate Office |
| Salathiel, Lisha | TriStar Global Energy Solutions |
| Salinas, Adriana | CITGO Petroleum Corporation |
| Salinas, Manuel | Formosa Plastics Corporation |
| Salinas, Paul | Team Industrial Services, Inc. |
| Salter, Jim | KnightHawk Engineering |
| Samour, Ray | The Dow Chemical Company |
| Sanchez, Ed | Flint Hills Resources, LP - Corpus Christi |
| Sanchez, Hector | Lewis-Goetz and Company, Inc. |
| Sanchez, Jason | Carbis, Inc. |
| Sanchez, Rick | Safway Services, Inc. |
| Sanders, Jared | ExxonMobil |
| Sanders, Karen | Chevron Phillips Chemical Co., LP |
| Sanders, Wayne | LyondellBasell Industries |
| Sanders-Mesler, Jeri | ExxonMobil Chemical Company |
| Sanderson, Darryl | Dow Chemical Company |